No, while the ball is "going down" (but already struck the floor) the floor exerts a force to slow the ball to 0 velocity, but then whle the ball is "going upward", the floor exerts a force giving the ball an upward velocity.
Why do golf balls bounce?
The spherical shape of golf ball contents helps create bounce. When force is exerted on the golf ball, it moves in a particular direction. When it hits a surface, the force of physics causes it to move in the opposite direction. Imprint Golf: Are All Golf Balls the Same?
What is the force exerted on the ball by the floor?
With newtons third law, it's that the force exerted on the floor, should be the same magnitude as the force exerted on the ball by the floor in the opposite direction. Does this mean that the ball exerts a force of 28.8N downwards and the floor exerts a force of 28.8N upwards?
Does the ball bounce down when it hits the floor?
HallsofIvy Science Advisor. Re: Bouncing a ball!! No, while the ball is "going down" (but already struck the floor) the floor exerts a force to slow the ball to 0 velocity, but then whle the ball is "going upward", the floor exerts a force giving the ball an upward velocity.
What is the normal force on the ball?
That normal force is the force exerted by the floor on the ball. That's what we need to solve for in part B. You know the net force (from part A), so set up an equation (add up the forces and set them equal to the net force) and solve for the normal force.
What forces are acting on a bouncy ball?
The motion of a bouncing ball obeys projectile motion. Many forces act on a real ball, namely the gravitational force (FG), the drag force due to air resistance (FD), the Magnus force due to the ball's spin (FM), and the buoyant force (FB).
When you drop a golf ball to the pavement it bounces up is a force needed to make it bounce back if so what exerts the force?
When you drop a golf ball to the pavement, it bounces up. Is a force needed to make it bounce up? If so, what exerts the force? When you drop a golf ball to the pavement a force is needed to make it bounce up which is the floor that exerts the force.
What Newton's law is bouncing a ball?
Newton's Third Law of Motion: Action-Reaction The reaction force is when the ball bounces up from the ground or bounces back from the object it was thrown at. This example relates to Newton's third law because it follows the rules of the law. For every time the ball is dropped (action) it bounces back (reaction.)
What affects the bounce of a ball?
The combination of the material properties of a ball (surface textures, actual materials, amount of air, hardness/ softness, and so on) affects the height of its bounce.
How will the motion of an object change as its mass is doubled and the magnitude of the net force on it is halved?
The acceleration is equal to the net force divided by the mass. If the net force acting on an object doubles, its acceleration is doubled. If the mass is doubled, then acceleration will be halved. If both the net force and the mass are doubled, the acceleration will be unchanged.
Why might your foot hurt if you kick a heavy desk or a wall?
Why might your foot hurt if you kick a heavy disk or a wall? By Newton's 3rd law, the desk or wall exerts a force on your foot equal in magnitude to the force with which you hit the desk or wall. If you hit the desk or wall with a large force, then there will be a large force on your foot, causing pain.
What type of motion is a bouncing ball?
periodic motion, in physics, motion repeated in equal intervals of time. Periodic motion is performed, for example, by a rocking chair, a bouncing ball, a vibrating tuning fork, a swing in motion, the Earth in its orbit around the Sun, and a water wave.
Which Newton's law can explain why the ball bounces back as it hits the ground?
The hitting of the ball on the floor is action while bouncing back of the ball after hitting is the reaction according to the Newton's third law of motion.
How does Newton's first law apply to a bouncing ball?
Newton's first law of motion says that anything keeps going at the same speed in the same direction unless something exerts a force on it. So a tennis ball can't bounce unless something - a racquet, the ground, a wall- exerts a force on it. Now you might wonder why some balls bounce more than others.
How does a ball bounce physics?
The air in the ball acts like a spring—it gets compressed and expands again. During the collision, some of the ball's energy is converted into heat. As a consequence, the ball shoots up with less energy than it had when it reached Earth. Our planet, being so massive, does not move as a result of the collision.
Which force will determine the quality of bounce?
Or rather, the friction force is always opposite the direction of the slip velocity between the spinning ball and the surface. Since the friction force is opposite of the ball's spin, it torques the ball in the other direction. It also causes the path of the ball's bounce to skew in the direction of the friction force.
How does pressure affect the bounce of a ball?
With more air in the ball, the air starts at higher pressure and pushes back that much harder when the ball is bounced. So that short answer is that more inflated basketballs bounce better because they have more air pressure inside them.
What are the rules for a golf ball?
There are six rules in the official governance regarding the golf ball [6]: General which states that a ball must be a golf ball in a traditional sense; Weight which specifies the upper limit for ball’s mass; Size which specifies the lower limit for ball’s diameter; Spherical symmetry which requires the ball to behave symmetrically;
What does intuition do to a ball?
Physical intuition pushes us more and more into the world of non-linearity. A ball that is fully underground will behave very differently to the one that simply slides on the surface. We expect that the forces acting on the ball will depend on the surface area of the ball in contact with the ground.
What is the good news about the equation of motions?
The good news is that the equation of motions do not differ that much from our previously studied Kelvin-Voigt system. We still have the parameters and which correspond to the stiffness and damping ratio. With the addition of the Coulomb friction law governing the behaviour of we still have a piecewise-smooth system of linear ODEs. In the limit we recover the rigid bounce theory in the vertical direction (when solving the singular perturbation problem). In terms of the analysis of the equations — these are not any more difficult that what we have studied before nor do they introduce a particular insight to the behaviour of the ball.
How many recordings were made of the ball bounce?
The resulting 330 recordings were analysed using image analysis methods to identify the velocity of the ball and its spin before and after the bounce. As the ball was fired from the launcher by two vertically placed wheels the assumption that the ball spins in the plane of its motion appeared to hold in the experimental setting.
Who proposed a simple bounce model to explain some phenomena?
The study focused on determining the physical properties which characterise a golf turf. Haake proposed some simple bounce models to explain some phenomena, however these have been supported by only a limited set of the collected data.
Does the rigid bounce theory agree with the lift off condition?
where we have assumed (this appears to be the natural choice of the parameter given the aforementioned physical meaning of it and the fact that we wish our ball to lift off). Let us now focus on the limit case where . We note that in this setting effects of the gravity are neglected, and this indeed agrees with the rigid bounce theory. Furthermore, by solving the lift off condition , we obtain an explicit formulation of the time of lift off
Which symmetry requires the ball to behave symmetrically?
Spherical symmetry which requires the ball to behave symmetrically;
How to bounce a golf ball off a golf club?
To bounce a ball off a golf club, start with a wedge or a short iron. These clubs have shorter shafts, so they’re easier to control. Wedges and short irons also have larger club heads than long irons, giving you a bigger target on which to bounce the ball. To begin, place a ball on the ground, then slide it onto the club face with your foot. Holding the club in one hand, lift the club face off the ground to get a feel for balancing the ball on the face. When you can balance the ball successfully, simply flick your wrist to pop the ball in the air. Try flipping it in the air a few times, then attempt to bounce it off the club face. Keep the face horizontal, as you did when you were just balancing the ball, and pretend that the club face can catch the golf ball. Just let the ball strike the face’s sweet spot. As you improve, flick your wrist slightly on impact to pop the ball a bit higher in the air.
How to avoid bounce on approach shots?
To prevent excessive bounce on approach shots, learn to hit the ball with more backspin, or at a higher trajectory. If the front of the green is hazard-free, you may wish to use less club on certain approaches and land the ball just short of the green, hoping it will bounce onto the putting surface.
How long did Tiger Woods bounce the ball off the club?
A well-known TV commercial showed Tiger Woods bouncing the ball off a club for about 20 seconds, then gripping his club quickly with two hands and swinging at the ball while it was still in the air, driving the ball straight down the fairway.
What is the most frustrating shot in golf?
But perhaps the most frustrating shot in golf is the approach that hits the green, then bounces off into the rough or a bunker.
Can you duplicate Tiger Woods' ball bounce trick?
Do not try to duplicate the end of Tiger Woods’ ball-bouncing trick unless you’re in a secluded area , with no people around. Tiger’s hand-eye coordination is off the charts. Yours most likely isn’t. There’s no telling which direction the ball will travel if you strike it while it's in the air.
Can you bounce a golf ball?
Bouncing the ball can be helpful, both on the course during a round of play, or as a practice exercise. There are other times, however, when you don’t want the ball to bounce.
Does a golf ball bounce?
A bouncing golf ball can help you or hurt you on the course. If you smack a drive down the middle of a straight fairway, for example, you’ll enjoy seeing the ball bounce as far as possible, adding length to your drive.
What does net force mean?
No. Net force means the sum of all individual forces acting. (Don't confuse 'net' with change.)
Is gravity acting on the ball aswell as the normal force?
Um, gravity is acting on the ball aswell as the normal force.
Introduction
Current Literature
Simple Approaches at The Modelling of The Compliant Behaviour of The Ground
Experimental Data
So Where Is It All Heading?
- When force is exerted on the golf ball, it moves in a particular direction. When it hits a surface, the force of physics causes it to move in the opposite direction.
Acknowledgements
References
- Although not much has been done, some results are available. A starting point is often a simple model for the bounce of a rigid ball against a rigid surface, such as the one described in . This usually assumes a simple Coulomb force acting as a friction between the ball and the surface, and the lift off is determined by a coefficient of restitution...